Takes a single column signal and outputs its FFT (using cuda) in frequency domain.

Needs CUDA>7.5 to work, check src/Makefile, if you have boost you can say so there and gain some speed.

Currently only GPU implementation is provided

fft -N [N] -Fs [Fs] -prec [double/float] < signal

N: Number of points in the signal
Fs: Sampling frequency
prec: Precision mode, float by default

seq 0 0.2 10000 |  awk '{print sin($1)}' | fft -N 10000 -Fs 5.0 > kk

w=$(grep $( datamash -W max 2 <kk) kk | awk '{print 2*3.1415*$1}')

w will be 1